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Kramer AFM-20DSP

20×20 Port Audio Matrix with DSP and Interchangeable Inputs & Outputs, Dante and built-in amplifier

20 terminals each of which can be configured as inputs or outputs

£2399 (£2878.80 inc. VAT)
Availability: In stock

Kramer AFM-20DSP (13-80451130)

The Kramer AFM-20DSP is a member of the Kramer XSPerience family of DSP products. AFM-20DSP is an advanced, professional audio matrix switcher with 20 Analogue ports that can be configured as inputs or outputs according to preset I/O configurations. AFM-20DSP includes multi-channel DSP, built-in 2x60W @ 8Ω and 1x120W @ 70V / 100V power amplifier, 4x4 Dante interface, HDMI embedding and de-embedding, and S/PDIF. The comprehensive and user-friendly graphic interface makes configuring every detail of your audio system intuitive and easy.

  • Advanced Audio Matrix Switcher — Professional, studio grade signal conversion technology, Including the latest generation 32-bit advanced Digital Analogue Converter architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. Maintains the quality of the original audio signal with selectable sampling rates up to 96 kHz. Flat frequency response, unmatched sonic performance, excellent signal to noise ratio, and extraordinarily low distortion levels.
  • Wide Range of I/O Formats — Includes 20 Analogue ports, 4x4 Dante interface, HDMI input and output, and S/PDIF input and output.
  • Multi-Channel Processing — Provides DSP (Digital Sound Processing) that enables simultaneous processing of all input and output signals.
  • Built-in Power Amplifier — 2x60W @ 8Ω and 1x120W @ 70V / 100V power amplifier.
  • Maximum Flexibility — Customize the Analogue port configuration: use the default 12 x 8 I/O matrix configuration or select from one of the many other preset I/O configurations. Route any input to any output, even between different formats (for example, route an Analogue input to an S/PDIF output). Control volume and DSP per port. Route any of the ports to the power amplifier.
  • Simple and Powerful Maestro Room Automation — Intuitive user interface enables you to fully automate your meeting room elements. Configure lights, shades, devices and more to be activated by an extensive range of triggers, including input/output connectivity, routing, and button pressing. By minimizing user intervention, Maestro room automation saves meeting prep time and minimizes human error before presentations.
  • Intuitive and Comprehensive Configuration and Control — Via a powerful, user-friendly graphic interface, set volume (gain and attenuation) and DSP per input; execute routing and select line in, mic in, phantom power or line out on each port; configure master level and more. Control signal routing, volume and other basic settings using API commands via RS-232 communication transmitted by a PC, touch screen system or other serial controller.
  • Audio De-embedding — De-embeds the audio signal from the HDMI input for routing to any of the outputs or for routing to the loop output.
  • Programmable — Supports up to 10 global presets per I/O configuration plus 10 mixer snapshot presets.
  • Easy, Cost-Effective Maintenance — LED indicators for main power, line in/out, mic in, clipping, power amp, Dante sync, and HDMI, enable easy local maintenance and troubleshooting. Local firmware upgrade via the USB type-A port ensures lasting, field-proven deployment.
  • Easy Installation — 19" enclosure for rack mounting a unit in a 1U rack space with included rack ears and universal 100-240V AC power connection.
  • 7 year warranty (Click Here for details)

Kramer AFM-20DSP Specifications


Ports 20 × balanced Mono Audio On 3-pin terminal blocks
Inputs 1 × HDMI On a female HDMI connector
1 × S/PDIF On an RCA connector
Outputs 1 × HDMI On a female HDMI connector
1 × S/PDIF On an RCA connector
120W Amplifier On a 4-pin large terminal block
Ports 1 × Dante On an RJ-45 female connector
1 × mini USB On a female mini USB-A connector
1 × RS-232 On a 3-pin terminal block
1 × Ethernet On an RJ-45 female connector

Audio Specifications

Amplifier Input Sensitivity Attains full power @ 0.3V (-10dBV)
Output Power 2 × 60W @ 4Ohms or 8Ohms, 1 × 120W @ 70V or 100V
Amplifier Type Class D
Maximum Voltage Gain 26dB SE / 32dB BTL
Dynamic Range 119dB
Frequency Response 20Hz to 20kHz @ +/-1dB
S/N Ratio 80dB - 10dBV, 20 Hz - 20 kHz
Audio THD + Noise THD+N (1kHz @ 1W) 0.003 %
Audio 2nd Harmonic 0.08% @ 75W RMS @ 4Ohms 6.67kHz
Video Max Bandwidth 10.2Gbps (3.4Gbps per graphic channel)
Max Resolution: 4K UHD @60Hz (4:2:0) 24bpp resolution
Compliance: HDMI and HDCP 1.4

User Interface

Front Panel LEDs 1 status, 20 Analogue audio ports, 4 Dante I/O, HDMI embed, HDMI de-embed, 2 S/PDIF I/O, and 2 amplifier channels
Control RS-232 Baud Rate 115200
Supported Web Browsers Windows Chrome


Power Source 100-240V AC 50/60Hz
Consumption 104VA max
Regulatory Compliance Safety CE
Environmental RoHs, WEEE
Enclosure Size 19" 1U
Type Aluminium
Cooling Fans
Accessories Included Power cord
Product Dimension 43.64×23.72×4.36cm (17.18×9.34×1.72") W×D×H
Product Weight 1.6kg (3.4lbs) approx.
Shipping Dimension 52.50×33.00×10.70cm (20.67×12.99×4.21") W×D×H
Shipping Weight 2.7kg (6.0lbs) approx.


Operating Temp. 0deg. to +40deg.C (32deg. to 104deg.F)
Storage Temp. -40deg. to +70deg.C (-40deg. to 158deg.F)
Humidity 10% to 90%, RHL non-condensing

Kramer AFM-20DSP Usage Diagram

Kramer AFM-20DSP Usage Diagram

Kramer AFM-20DSP Possible Alternatives

Product CodeDescriptionPriceInc. VAT
Kramer AFM-20DSP-AEC 20 × 20 Audio Matrix with DSP, AEC and Interchangeable Inputs & Outputs, Dante and built-in amplifier 20 terminals each of which can be configured as inputs or outputs £2688 £3225.60
Kramer AFM-20DSP-LE 20 × 20 Port Audio Matrix with DSP and Interchangeable Inputs & Outputs Lite Edition 20 terminals each of which can be configured as inputs or outputs £1904 £2284.80